js 实现两个数组（一个数组包含于另一个数组中）去重的问题

Question

arr2是arr1的子数组，（也就是说arr2中的元素arr1都有）现在要得到在arr1中删除arr2中出现的元素后的结果，各位大神有什么好办法

    var arr1 = [

        {id:1,name:'a'},

        {id:2,name:'abc'},

        {id:3,name:'abbb'}, 

        {id:4,name:'abxxx'}, 

        {id:5,name:'xyz'},

        {id:6,name:'abcdef'},

        {id:7,name:'abzzzz'}];

    var arr2 = [

        {id:1,name:'a'},

        {id:5,name:'xyz'},

        {id:7,name:'abzzzz'}];